Is 774 is a composite number or not ?
- As we already know that, the number having factors 1 and the number itself is the prime number.
- And numbers having more than these two factors are the composite numbers.
- To check whether the number 774 is composite or not first we have to find its factors.
Contents
Factors of 774:
- If we have taken numbers from 1, 2, 3…for checking factors of 774, we found that 774 has factors 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774. Hence, we must say that 774 is a composite number.
- Thus, 774 is the composite umber.
- If we multiply 774 by 1, 2, 3 then we get the multiples of 774 which are 774, 1548 and so on.
About the number 774:
- 774 has more than two factors which are 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774 and hence it is the composite number.
- 774 is the even composite number and it is not the perfect square also.
- If we divide 774 by 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774 then we get remainder as zero. Hence, 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774 are the factors of 774.
Note:
- 774 is not the perfect square.
- Factors of 774: 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774
- Prime factors of 774: 2, 3, 43
Conclusion:
- 774 is the composite number which has factors 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774
- And hence, 774 is not the prime number.
Multiple Choice Questions:
1) 774 is a
a) Odd number
b) Prime number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The prime factors of a composite number 774 are
a) 1
b) 2, 3, 43
c) 1, 6, 9, 18, 86, 129, 258, 387 and 774
d) 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774
Ans: b) 2, 3, 43
3) 774 is the composite number because
a) It has factors 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774
b) It has only prime factors
c) Divisible by 2
d) Both a and b
Ans: a) It has factors 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387 and 774